<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 
        1.设置http请求时限timeout
        2.formdata对象
     -->
</head>
<body>
    <script>
        // var xhr = new XMLHttpRequest();
        // xhr.timeout = 30;
        // xhr.ontimeout = function(){
        //     console.log('请求超时了');
        // }
        // xhr.open('GET', 'http://www.liulongbin.top:3006/api/getbooks?id=1');
        // xhr.send();
        // xhr.onreadystatechange = function () {
        //     if (xhr.readyState === 4 && xhr.status === 200) {
        //         console.log(xhr.responseText);
        //     }
        // }
        var fd = new FormData();
        fd.append('uname','zhx');
        fd.append('upwd','11111');
        var xhr = new XMLHttpRequest();
        xhr.open('post','http://www.liulongbin.top:3006/api/formdata');
        xhr.send(fd);
        xhr.onreadystatechange = function(){
            if (xhr.readyState === 4 && xhr.status === 200) {
                console.log(JSON.parse(xhr.responseText));
            }
        }
    </script>
</body>
</html>